Turret attachment for lathe-carriages.



PATENTED AUG. 2, 1904. J. H. BLAIR. TURRET ATTACHMENT FOR LATHE CARRIAGES.

APPLIUATION FILED APB. 4, 1904.

gf' I.

N0 MODEL.

Patented August 2, 1904.

UNITED STATES PATENT OFFICE.

JOSEPH HENRY BLAIR, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE LODGE Sz SHIPLEY MACHINE TOOL COMPANY, OF CINCINNATI, OHIO, A CORPORATION.

TURFIET ATTACHMENT FOR LATHE-CARFZIAGES.

SPECIFICATION forming part of Letters Patent No. 766,488, dated August 2, 1904.

Application filed April 4:, 1904. Serial No. 201,412. (No model.)

means for clampin g the tools in the turret.

The features of my invention ai'e more fully set forth in the description of the accompany ing drawings, forming a part of this specification, in which Figure I is a top plan view of my device in position for use.

ot' the saine, partly in section. section on line '.1' a', lai'ged section on line i' fr, Fig. 1.

Fig. i). is a front elevation Eig. 3 is a Fig. I is an en- Fig. is

Fig. I.

an enlarged section on line /i/f i/i, Fig. 4.

B represents the carriage, provided with the ordinai'y gibbed way C for the cross-feeding of the tool-post or tool-rest.

l) represents the cross feed-screw. E represents a plate bolted on top of the carriage and having' its iindei' surface fitted to the gib C ot' the carriage.

Plate E is pi'ovided with a gibbed way F, to which the turret (`r is fitted.

The turret has a depending' lug H,

through which the screw passes for i'ecipi'oeating' the turret.

registei'ing ti'ansv This lug depends through erse slots formed in the transverse ways ot' the cai'i'iag'e and plate C F, respectively.

This plate is a temporary attachment permitting a turret to be used on an engine-lathe in post.

place of an ordinary tool- It atlords the added strength and bearing-surface necessary in turret-work without interfering with the capacity oi the tool for its ordinary work.

It enables this machine to do work ordinarily requiring a different The plate can be readily kind ot' machine.

slipped on or olf, bolted to position, and the turret connected with the ci'oss feed-screw. This plate is wider than the bridge of the cai'- i'iage, and it I'orms a broad and rigid foundation for the turret, being securely bolted to the top of the cai'i'iage. This plate can be readily constructed to lit upon the ordinary carriage and receive an ordinary turret. The cai'i'iage without this plate is not broad enough oi' rigid enough to support the turret.

For clamping the tool in the turret I, provide a clamping-sleeve I, cut out at one side J to form a bearing for the tool K.

L represents a clamping bolt passing through the sleeveI and having screw-threaded engagement with the turret. The sleeve is provided with two bores e on each side oit' the bolt-boi'e into which springs are insei'ted. TVhen the bolt L is tui'ned up to clamp the tool, the springs are compressed, and when the bolt L is loosened these springs raise the clanipingesleeve I, releasing the tool.

Having described iiiy invention, I claim-- A carriage for an engiiie-latlie provided with a slotted gibbed way for the ordinary tool-post, a ci'oss feed-screw joiirnaled in the cai'i'iage, a plate the undei' surface of which is foi'iiied to tit the carriage gibbed way, the said plate being' bolted to the cari'iage, the upper surface of the plate being 'toriiied with a transverse gibbed way provided with a slot registering with the slot in the gibbed way of the carriage, and a turret formed to lit the gibbed way on the top of the plate and provided with a lug depending' through the slots in the carriage and plate and having screwthreaded connection with the cross feed-screw.

In testimony whereof ,l have hereunto set my hand.

JOSEPH HENRY BLAIR.

Vitnesses:

OLIVER B. KAISER, LEO ODONNELL. 

